internal speaker is not working in hp compaq dc 7900

[connect2jan]

I have installed Ubuntu 10.10. everything is ok except with internal speaker in my HP Compaq dc7900 Convertible Minitower PC. audio is coming through headset but not through internal speaker. what might have gone wrong with my system. but it is working with windows 7 ultimate. i'm using dual boot.

i have installed the same ubuntu 10.10 64 bit in my laptop DELL Inspiron N4010, with this everything is fine. but i have problem with hp desktop internal speaker. what should i do?

I have observed one thing that in SYSTEM > SOUND > OUTPUT Connector has only two options 1. Analog Headphones 2. Analog output.
but in my DELL Inspiron N4010 one more option is there "Analog Speakers".

I think problem is this one only. please solve my problem soon

thanks in advance

JAN..

[MikeTbob]

You probably need a driver/module for the sound card, post the output of this command and hopefully someone can point you in the right direction.

sudo lspci -knn

[connect2jan]

thanks MIKE for your quick reply.
this is the output i have got.

jan@jan-PC:~$ sudo lspci -knn
[sudo] password for jan: 
00:00.0 Host bridge [0600]: Intel Corporation 4 Series Chipset DRAM Controller [8086:2e10] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel modules: intel-agp
00:01.0 PCI bridge [0604]: Intel Corporation 4 Series Chipset PCI Express Root Port [8086:2e11] (rev 03)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:03.0 Communication controller [0780]: Intel Corporation 4 Series Chipset HECI Controller [8086:2e14] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
00:03.2 IDE interface [0101]: Intel Corporation 4 Series Chipset PT IDER Controller [8086:2e16] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
00:03.3 Serial controller [0700]: Intel Corporation 4 Series Chipset Serial KT Controller [8086:2e17] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: serial
00:19.0 Ethernet controller [0200]: Intel Corporation 82567LM-3 Gigabit Network Connection [8086:10de] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: e1000e
	Kernel modules: e1000e
00:1a.0 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #4 [8086:3a67] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: uhci_hcd
00:1a.1 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #5 [8086:3a68] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: uhci_hcd
00:1a.2 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #6 [8086:3a69] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: uhci_hcd
00:1a.7 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB2 EHCI Controller #2 [8086:3a6c] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: ehci_hcd
00:1b.0 Audio device [0403]: Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller [8086:3a6e] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel
00:1c.0 PCI bridge [0604]: Intel Corporation 82801JD/DO (ICH10 Family) PCI Express Port 1 [8086:3a70] (rev 02)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.4 PCI bridge [0604]: Intel Corporation 82801JD/DO (ICH10 Family) PCI Express Port 5 [8086:3a78] (rev 02)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1d.0 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #1 [8086:3a64] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: uhci_hcd
00:1d.1 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #2 [8086:3a65] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: uhci_hcd
00:1d.2 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #3 [8086:3a66] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: uhci_hcd
00:1d.7 USB Controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB2 EHCI Controller #1 [8086:3a6a] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: ehci_hcd
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev a2)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801JDO (ICH10DO) LPC Interface Controller [8086:3a14] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel modules: iTCO_wdt
00:1f.2 SATA controller [0106]: Intel Corporation 82801JD/DO (ICH10 Family) SATA AHCI Controller [8086:3a02] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:3035]
	Kernel driver in use: ahci
	Kernel modules: ahci
01:00.0 VGA compatible controller [0300]: nVidia Corporation G86 [GeForce 8400 GS] [10de:0422] (rev a1)
	Kernel driver in use: nvidia
	Kernel modules: nvidia-173, nouveau, nvidiafb

[MikeTbob]

Looks good to me, driver/module is loaded.

00:1b.0 Audio device [0403]: Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller [8086:3a6e] (rev 02)
Subsystem: Hewlett-Packard Company Device [103c:3035]
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel

Are you sure it isn't muted?

[connect2jan]

once again thanks MIKE for your response. I have checked everything and i have put full volume in "OUTPUT VOLUME" and in "ALERT VOLUME" without right mark in MUTE check box. sound is coming through headset in fine manner, but not with internal speaker. I think one option is missing in SOUND PREFERENCE > OUTPUT>CONNECTOR. in this "ANALOG SPEAKER" option is not there whereas it is there in my laptop. Is it giving problem or something else? I don't know what to do! please help me. I don't want to go out from UBUNTU. thanks once again to you . I hope your reply.

[connect2jan]

Just Now I have tried PClinuxOS live cd. with that audio was coming fine with even external speaker also and I noticed that there is no option "ANALOG SPEAKER" in SOUND PREFERENCE > OUTPUT>CONNECTOR. but it was working fine. then what could be the problem?

[GANI525]

try to install GNOME ALSA MIXER. and then uncheck mono. then increase volume with the control for mono. surely you will get sound. I don't know wether it's correct solution or not but you can listen sound surely.